ª 事例：
<%@ page language=”java” contentType=”text/html”%>
<%@ page import=”java.util.Date”%>
<%!
Private String getGreeting()
{
Date now = new Date();
String greeting = null;
If( now.getHours()<12)
{
greeting = “Good morning”;
}
else if(now.getHours()<18)
{
gretting = “Good day”;
}
else
{
greeting = “good evening”;
}
Return greeting;
